The Delaware Geological Survey - Avondalehttp://www.dgs.udel.edu/taxonomy/term/906/0
enOutcrop Ba14-a: The Setters Formation at Avondale Quarryhttp://www.dgs.udel.edu/delaware-geology/outcrop-ba14-setters-formation-avondale-quarry
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<p>The Setters Formation is located in southeast Avondale, PA. Huge slabs of rock have been exposed by a gravel company that has been removing the hillside quarrying for quartzite to sell as building stone and grinding pelitic rock into gravel and stone. These slabs have a foliation with a strike of 45 degrees East of North and a southeastern dip off of the Avondale Anticline. They also display quartzite, schist, and pods of pegmatite, containing large garnets (1-2 in. diameter) and schorl tourmaline, that appear to be “sweated out of schist.” A dramatic contrast in rich type-shelf facies reflects beach sand and bogs or inlets.</p>
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Appalachian PiedmontAvondaleoutcropSetters FormationTue, 15 Sep 2009 17:52:20 +0000rockman491 at http://www.dgs.udel.edu